Electrocardiograph



FIG. 1 is a perspective view showing the front, top and right side of anelectrocardiograph incorporating my new design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is a reduced front elevational view thereof;

FIG. 4 is a reduced rear elevational view thereof;

FIG. 5 is a reduced right side elevational view thereof;

FIG. 6 is a reduced left side elevational view thereof; and

FIG. 7 is a reduced bottom plan view thereof.

The ornamental design for an electrocardiograph, as shown and described.